gandcrab | 29f0b9a9948b30ecaf901df7e0b70172800a45b398f656669da4a899dd0191f4

General

Target

2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
Size

250KB
MD5

2565a4435fb1e006b528ed44522db624
SHA1

383e737f362afaa30ecb41be63c8c5b94e372175
SHA256

29f0b9a9948b30ecaf901df7e0b70172800a45b398f656669da4a899dd0191f4
SHA512

fb87a401e492d1566aead223f687519a1c6ae043dc805de4e0fbf9240a12d17f4f5ee9ca18b52d0e972fd803deca72addff461b7d6c8ee9660f443c1332db3b2
SSDEEP

3072:L/yK5d0Gj0+nY3uEBLvBNfdUR2/qFnB8o2+vU3WuvIBuj00nReaXkuSQ7cdOd3:L/y20Gj0r+EBFrkvlU3RvIUDOIN

Score

10^/10

gandcrab backdoor persistence ransomware

Malware Config

Signatures

GandCrab payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1540-4-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/1540-6-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab
behavioral1/memory/1540-13-0x0000000000400000-0x0000000000444000-memory.dmp	family_gandcrab
behavioral1/memory/1540-16-0x0000000000220000-0x0000000000237000-memory.dmp	family_gandcrab

Gandcrab
Gandcrab is a Trojan horse that encrypts files on a computer.
ransomware backdoor gandcrab

Detects Reflective DLL injection artifacts 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1540-4-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1540-6-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1540-13-0x0000000000400000-0x0000000000444000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader
behavioral1/memory/1540-16-0x0000000000220000-0x0000000000237000-memory.dmp	INDICATOR_SUSPICIOUS_ReflectiveLoader

Detects ransomware indicator 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1540-4-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1540-6-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1540-13-0x0000000000400000-0x0000000000444000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20
behavioral1/memory/1540-16-0x0000000000220000-0x0000000000237000-memory.dmp	SUSP_RANSOMWARE_Indicator_Jul20

Gandcrab Payload 4 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1540-4-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/1540-6-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab
behavioral1/memory/1540-13-0x0000000000400000-0x0000000000444000-memory.dmp	Gandcrab
behavioral1/memory/1540-16-0x0000000000220000-0x0000000000237000-memory.dmp	Gandcrab

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\lwwjgjqxkjh = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\gcsykr.exe\""	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

description	ioc	process
File opened (read-only)	\??\R:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\G:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\H:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\P:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\V:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\W:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\B:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\Q:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\S:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\Y:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\Z:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\E:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\K:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\L:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\M:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\N:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\O:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\T:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\U:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\A:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\I:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\J:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
File opened (read-only)	\??\X:	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

pid process

1540 2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
1540 2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

pid	process
1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe

description	pid	process	target process
PID 1540 wrote to memory of 2680	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2680	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2680	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2680	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2524	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2524	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2524	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2524	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2884	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2884	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2884	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2884	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2468	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2468	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2468	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2468	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 3020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 3020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 3020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 3020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1584	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1584	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1584	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1584	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2852	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2852	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2852	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2852	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1948	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1948	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1948	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1948	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2020	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1868	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2664	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2664	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2664	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2664	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1088	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1088	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1088	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1088	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1688	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1688	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1688	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1688	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2936	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2936	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2936	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 2936	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1240	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1240	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1240	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe
PID 1540 wrote to memory of 1240	1540	2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe	nslookup.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_2565a4435fb1e006b528ed44522db624_karagany_mafia.exe"
1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1540

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:2680

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2524

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:2884

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2468

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:3020

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:1584

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:2852

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:868

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:1948

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2020

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1868

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:2664

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:1088

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:1688

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:2936

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:1240

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:1920

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:2284

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1332

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns1.wowservers.ru
2⤵
PID:1036

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns1.wowservers.ru
2⤵
PID:856

C:\Windows\SysWOW64\nslookup.exe
nslookup ransomware.bit ns2.wowservers.ru
2⤵
PID:1944

C:\Windows\SysWOW64\nslookup.exe
nslookup carder.bit ns2.wowservers.ru
2⤵
PID:1648

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1540-2-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/1540-3-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1540-4-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1540-6-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

Download
memory/1540-13-0x0000000000400000-0x0000000000444000-memory.dmp

Filesize
272KB

Download
memory/1540-15-0x0000000000540000-0x0000000000640000-memory.dmp

Filesize
1024KB

Download
memory/1540-16-0x0000000000220000-0x0000000000237000-memory.dmp

Filesize
92KB

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Malware Config

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Network

MITRE ATT&CK Matrix ATT&CK v13

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